Table 2 Subsonic viscous flow around a sphere: drag coefficient \(C_D\) and lift coefficient \(C_L\), and wake length L obtained by different schemes. The Mach number and Reynolds number of the incoming flow are \(Re=118\) and \(Ma=0.2535\). T-mesh, H-mesh and M-mesh represent tetrahedral mesh, hexahedral mesh and hybrid mesh respectively
From: High-order compact gas-kinetic schemes for three-dimensional flow simulations on tetrahedral mesh
Scheme | Computational mesh | \(C_D\) | \(C_L\) | L |
|---|---|---|---|---|
Linear compact GKS-4th | 116308 cells, T-mesh | 1.0163 | \(<3.0\times 10^{-5}\) | 0.941 |
WENO compact GKS-4th | 116308 cells, T-mesh | 1.0146 | \(<1.5\times 10^{-3}\) | 0.907 |
VFV-4th with AMR [33] | 621440 cells, H-mesh | 1.0157 | – | – |
Direct DG-3rd scheme [34] | 160868 cells, M-mesh | 1.0162 | – | 0.96 |
Hybrid scheme (FR and DG-5th) [35] | 68510 cells, M-mesh | 1.0162 | – | – |